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Transcript
Unit 3 Review Sheet
The Universe
 Describe the Big Bang Theory.

What are the 2 major pieces of evidence for the expansion of the Universe
and why is each one important?

What is the approximate age of the Universe?

What is a light year?
Galaxies
 What is the name of our Galaxy?

What is the shape of our galaxy?

Where is our solar system located within our galaxy?
Stars
 How do stars produce their energy?

What is the fuel for stars on the main sequence?

Describe the life cycle for average size stars like the Sun and large stars.

Be able to use the H-R Diagram in your reference table on page 15.
Solar system
 Be able to use the planetary information chart of page 15.

Where is the asteroid belt located?

What are the 2 types of planets and list their differences?
o Density?
o Composition?
o Size?
o Number of moons?

What is the difference between rotation and revolution?

What is the shape of the planets orbits and what are the parts of each one?

How do you calculate eccentricity?

What is the range for eccentricity?

How does eccentricity change as you move the foci closer together and
further apart?

What two factors determine gravitational attraction?
Be able to put the following in order from largest to smallest:
 Planet
 Solar System
 Star
 Universe
 Galaxy